Prepare the dough as described for the basic pizza, using the
alternative quantities and the sugar instead of salt. Leave it to rise,
and preheat the oven to 230 C/ 450 F/ Gas 8.

Roll the dough out until it is either a rectangle of a circle 2.5cm (1 inch)
thick: this amount of dough makes one big rectangular pizza
about 35 x 50cm (14 x 20 inch). Place it on an oiled baking tray,
cover with a clean cloth and leave to rise again for another hour.

Push down on the dough all over with your fingers to make deep holes,
then dribble with four tablespoons of olive oil and scatter with the
rosemary leaves. Generously grind fresh pepper and finally sprinkle
coarse salt over the whole surface. Bake in the preheated over for
20 minutes: the top should be golden, but the rosemary must not brown.

To obtain a crusty focaccia, pour some extra virgin olive oil on top as it emerges from the oven.